Cave-In-Rock Precinct is located in Hardin County, Illinois, USA.

[3] As of the 2020 census[2] there were 525 people, 201 households, and 138 families residing in the precinct.

There were 338 housing units at an average density of 23.46 per square mile (9.06/km2).

30.30% of all households were made up of individuals, and 10.90% had someone living alone who was 65 years of age or older.

This Hardin County, Illinois location article is a stub.